PyOpal → Utilities Relation

File in src/PyOpal	Includes file in src/Utilities
PyCore / ExceptionTranslation.cpp	OpalException.h
PyCore / Globals.cpp	OpalException.h
PyObjects / PyField.cpp	OpalException.h
PyObjects / PyNDGrid.cpp	OpalException.h
PyCore / PyOpalObject.h	OpalException.h